<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>画板</title>
    <style>
      #app {
        width: 600px;
        height: 400px;
        outline: 1px solid #a6c8f9;
      }
    </style>
  </head>
  <body>
    <button id="grid">网格</button>
    <button id="clear">清除</button>
    <button id="axis">坐标轴</button>
    <button id="pencil">笔</button>

    <div id="app"></div>
    <!-- built files will be auto injected -->
  </body>
</html>
